Schneider Electric QMB-363-T Fusible Panelboard Switch

Schneider Electric’s Square D QMB-363-T fusible panelboard switch is a 100 A, 600 V three‑pole fusible disconnect designed for use with QMB fusible power distribution panelboards (D2 series). This dual/twin style unit accepts Class R, H, and K fuses, enabling field protection of three‑phase feeder circuits, and it provides up to 200 kA short‑circuit interrupting capability at 480 V, helping safeguard downstream equipment. The switch is rated for indoor service with a NEMA 1 enclosure, and it is intended for integration with QMB D2 panel boards and their associated switchgear. With Schneider Electric’s QMB family, it forms a compact, scalable solution for commercial and light industrial power distribution where reliable, fuse-type protection is required for 3‑phase loads.